[1] : The Collaborative International Dictionary of English v.0.48

pothouse \pot"house`\, n.
   an alehouse. --t. warton.
   1913 webster

[2] : WordNet (r) 2.0

pothouse
     n : tavern consisting of a building with a bar and public rooms;
         often provides light meals syn: public house, pub, saloon,
          gin mill, taphouse
see also:
public house pub saloon gin mill taphouse 

Pothouse >> P Words
Pothouse, definition of term: Pothouse
pothouse_pag1.html